Part Details | AIRFRAME BALL BEARING
3110-00-139-3120 A cylindrical item in which the inner or outer ring turns upon row(s) of hardened BALL, BEARING which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes BEARING, BALL, ANNULAR.
Alternate Parts: 3008169010101, 3008169-010-101, 3TWF4556P, 3TWF45-56P, 3110-00-139-3120, 00-139-3120, 3110001393120, 001393120
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
31 | AUG 09, 1971 | 00-139-3120 | 00041 ( BEARING, BALL, AIRFRAME ) |
REFERENCE DRAWINGS & PICTURES
SINGLE ROW INNER RING EXTENDED BOTH SIDES

Cross Reference | NSN 3110-00-139-3120
Part Number | Cage Code | Manufacturer |
---|---|---|
3008169-010-101 | 99696 | LOCKHEED MARTIN CORPORATIONDIV LOCKHEED MARTIN SYSTEMS & GLOBAL |
3TWF45-56P | 78118 | MPB CORPORATIONDBA TIMKEN AEROSPACE |
Technical Data | NSN 3110-00-139-3120
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
BORE DIAMETER | 2.8125 INCHES NOMINAL |
OVERALL OUTSIDE DIAMETER | 3.5000 INCHES NOMINAL |
OUTER RING WIDTH | 0.3120 INCHES NOMINAL |
INNER RING WIDTH | 0.3750 INCHES NOMINAL |
RETAINER FABRICATION METHOD | MACHINED |
SHIELD QUANTITY | 2 |
ALIGNMENT TYPE | RIGID |
LOAD DIRECTION | RADIAL |